21710194

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 36936000

約数和(自身を除く): 15225806

約数列:

[1, 2, 11, 22, 37, 74, 149, 179, 298, 358, 407, 814, 1639, 1969, 3278, 3938, 5513, 6623, 11026, 13246, 26671, 53342, 60643, 72853, 121286, 145706, 293381, 586762, 986827, 1973654, 10855097, 21710194]

約数ペア:

[(1, 21710194), (2, 10855097), (11, 1973654), (22, 986827), (37, 586762), (74, 293381), (149, 145706), (179, 121286), (298, 72853), (358, 60643), (407, 53342), (814, 26671), (1639, 13246), (1969, 11026), (3278, 6623), (3938, 5513)]